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Why 0.4 MPH Can Cost You a Lap: How NASCAR Actually Catches Pit Road Speeding

How NASCAR actually catches pit road speeding without a radar gun, the tolerance math behind it, and why 0.4 mph cost a driver a full lap in 2026.

Why 0.4 MPH Can Cost You a Lap: How NASCAR Actually Catches Pit Road Speeding
Jul 08, 2026 · 6 min read ·
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